BROWNSVILLE, Texas — A police officer from this border city is expected to be released on bond following her arrest on federal human smuggling charges for allegedly trying to get her boyfriend past an immigration checkpoint.

Authorities identified a Cuban immigrant with a long arrest history as the man who violently shanked a corrections officer in the neck. The man then stole the guard’s weapons, murdered an innocent man, and engaged police in a short but fierce gun battle that led to his death.

BROWNSVILLE, Texas, — An inmate in this border county stabbed a sheriff’s deputy, took his service weapons, and killed a man before leading police on a high-speed chase that ended in a deadly shootout.